11633261 has 2 divisors, whose sum is σ = 11633262. Its totient is φ = 11633260.

The previous prime is 11633233. The next prime is 11633267. The reversal of 11633261 is 16233611.

It is a happy number.

11633261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8375236 + 3258025 = 2894^2 + 1805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11633261 is a prime.

It is a super-2 number, since 2×11633261² = 270665522988242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11633267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5816630 + 5816631.

It is an arithmetic number, because the mean of its divisors is an integer number (5816631).

Almost surely, 2^11633261 is an apocalyptic number.

It is an amenable number.

11633261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11633261 is an equidigital number, since it uses as much as digits as its factorization.

11633261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 11633261 is about 3410.7566609185. The cubic root of 11633261 is about 226.5863919410.

Adding to 11633261 its reverse (16233611), we get a palindrome (27866872).

The spelling of 11633261 in words is "eleven million, six hundred thirty-three thousand, two hundred sixty-one".